Storage battery.



Patented Aug; 10, i909.

'3 SHEETS-SHEET 1.

STORAGE BATTERY.

APPLICATION FILED DB0.17,1906.

R. N. GHAMBERLAN, H. E. PRATT & A. S. HUBBARD.

R. N. GHAMBBRLAIN, H. E.-1 RATT & A. s`. HUBBARD. STORAGE BATTERY.

APPLICATION FILED DEU.1' I,1906.

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To all whom it may concern:

STORAGE' BATTERY, Y.

Specification of Letters Patent.

Patented Aug. 10, 1909.

Application filed December 17, 1906. Serial No.l 848,232.

Be it known that We, RUFS N. CHAMBER- LAIN and HERBERT E. PRATT,citizens of the United States, residing at county of Erie and State ofNew York, and ALBERT S. HUBBARD, a citizen of the United `States,residin at Belleville,'in the county of Essex and tate of rNew Jersey,have in' vented a new and useful Improvement in Storage Batteries,ofwhich the following is l a specification.

This invention relates mainly to that class of storage batteries inwhich lightness and compactness are' importantvdesiderata, as,

for instance, the batteries which are used in submarine boats andEsimilar vessels.

The objects of the invention are to so construct the jar or tank of thecell, the battery plates and connecting arts, that the height of thecell is reduced? Without. interfering With'the removal of the batteryplates; to

provide strong, light and: eflicientseparators to provide means forthoroughly cooling the Jar or tank by circulating air; and to'im- 'bprove the cell. 1n other respects. l'nthe accompanying drawings,consistin of" three sheets: F1" une 1 is a longitudine `sectionalelevation or a battery cellprovided With these improvements. Fig. 2 1s ahori zontal section in line 2-2, Fig. l. Fig. 3 is a' vertical crosssection in line 3-3, Fig. l. Fig. a is a perspective view of one of thecrates. Fig. 5 is av fragmentary perspective viewof portions of thecrate detached. Fig. 6 isa vertical section of the upper portion of oneofthe outer Walls ofthe crate. Fig. 7 is a fragmentary vertical crosssection in line `7, Fig. l. v ig. 8 i's a fragmentaryside elevation oftvvo adjacent bus bars and connecting parts. Fig. 9 is a fragmentaryside elevation of two bus bars and an extension thereof of a modifiedconstruction. Fig. 10 is a perspective view of lone of the spacing Ipieces. Fig. 11 is a' fragmentary perspective vievv of one of the duplexseparators.

Like letters and numerals of reference re- `fer to like parts in theseveral li ures..

Y A; represents the jar or tank ot the cell and strong hard rubber. ejar is constructed with a top portion 20 which is offset out`v Wardly,forming an internal shoulder 2l on the'. fef'iir aidesof the jarandabove said shoulder an,l internal reces's22f, Which-is in-l terrupted ontwo opposite sides of the jar b lugs or bosses 23. extending above theshoul) der to the proper height for supporting the cover B at. twosides.

C and l) represent the two sets of battery plates arranged in the jarand supported on tvvol upright glass plates E which are preferablyarranged tel con-verge slightly in an upward direction. The jar4 isprovided on tvvoopposite sides, at the junctiony of its bettom with twoof the upright Walls, with a reinfcrceinent 2e havin a groeve 25 inwhich the lower end of th g ass pla-te isfseated and ndiereby'the plateis prevented from shitting F and G re resent the bus bars which con.-L

neet,` respectively, the lugs-` of the plates C and D. Each of thesebars is arrangedin l the recess 22 above the shouldcr2l of the j er andis connected to the lugs of the corresponding set of plates by burning,the bus ar F being. burned' to the connecting lugs 26 of the plates C'and the bar G to the connecting lugs 27 oi.' the plates D. bar isconstructed with an extension` which extends upwardly in the recess 22and over `the .top edge of the oset portion 2010i the jar, and is burnedto the corresoonding extension of the bus bar in the a jacent cell. 28represents the extension ofthe bus bar F and '29 that of the bus bar G.Fig. 8 represcnts these parts relative to the bus bar E before they arejoined by burning and shows this bus bar provided with lugs 'which arejoined to the lugs 26 of the plates C by burn- 31, Figs. I, 2, 3 and l0,represents insulat4 ing spacing pieces c' rubber which are appl'ed tothe tops c the glassplates E between the supporting lugs 32 of the.battery plates for spacing and separatin f the plates.

.H represents the separators w lich are in` terposed between, adjacentbattery plates and Whichrest upon a four-sided frame I ywhich in lturnrests upon the bottom of the Jar and are held down by a four-sided framey Y he cover f la upon which the cover B bears. rests uponthe'supporting lugs 23 of the jar andns, held down by binding posts 33formed ontvvo of the plates. The cover is provided with vents 34 oi4 anysuitable construction. I, In' order to' prevent injury to the hardrubber jar during the operations of burning the bus bars to the lugs ofthe plates and of burning the extensions of adjacent bus bars, the topportion of the jar is protected by tire proof facings 35 and 236,applied, respectively, to the inner side and top of the oii'set topportion 20 of the jar. These facings ai e preferably formel of micaplates.

'the bus bars are arranged within the top recess of the jar above theshoulder 21 thereof, and do not extend above the jar except in so far asthe extensions 28 or 29 of the bars extend above the jar and this pro,jee-tion is inconsiderable. The height of the cell is thereby keptcomparatively low. Each bus bar and its extension is located outside orbeyond the outermost edges of the adjacent supporting lugs of theopposing set of battery plates and therefore does not ining set ofplates from the jar. As described, each bus bar may be fornied with anextension 28 and the extensions of adjacent bus bars may be united byburning, but other constructions may be employed, for instance, a singlesaddle-shaped extension 37, Fig. 9, may be united't'o adjacent bus bars.In either case the top recess 22v of the jar re ceives the bus bar andits extension and places these parts out of the way of the opposing setof battery plates.

The rubber jar is provided with a suitable number of feet or base pieces40, four being preferred, which rest upon the rubber lin ing il of thecompartment in which the cell is arranged. These base pieces support thebottom of the jar at a sul'licient height to form circulating channelsfor air underneath the bottom and also to leave suiicient space for thereception of any acid which may be spilled out of the jar. Usually ininstalling such batteries for submarine boats sixty .cells are employed,arranged in two sets of thirty each in two lead-lined compartments.

The separators H consist each of two like perforated plates havingupright ribs on one side and arrangedl with their ribbed sides towardeach other. The ribs have a staggered arrangement so that the rib of oneplate stands about midway between two ribs of the opposing plate. Theplates and ribs are preferably formed of hard rubber and the ribs are.cemented or otherwise secured to or formed on the plates. rl`wo of theseribbed plates placed with their ribbed sides against each other frm aduplex separator having comparatively large upright flow passages orchannels between adjacent ribs. ln the du plcx separators shown in thedrawings, each perforated plate 42 is provided with three upright ribs4?), so that ltwo of these plates in face to face contact form tiveupright flow channels between the six 55 ribs, while each plate has onlythree ribs.

terfere with the free removal of the oppos.

The duplex separator is quite stiff and stron and can be easily andconveniently handled without danger of breakage and is at the same timevery light, which is a consi'deration of great importance in batteriesdesigned for use on submarine vessels. The perforations of theseparat/0r plates 'are smaller than the distance between two 'plates tomake sure that any solid particle which might be small enoughyto passthrough one of the pcrforations is also small enough to fall freelythrough the upright channel to the bottom of the jar and so pre-- ventshort circuiting. v

In order to properly 'space the individual cells and to provide channelsthrough which the air can circulate freely in Contact with the jar's tocool the same, a cra-te or freine is provided for the reception of thecells. This crate or frame consists of side Yf1-'falls 50, end walls 5l,longitudinal partitions 5i?, and transverse partitions 53. The xititions consist each of sever-.ii suj. strips which are provided at thectc ing points with notches 54;, 55 in such manner that the strips ofthe longitudinal. partiti interlock with those of the transverse r.'tions, as shown in Fig. 5. The outer walls are provided on their innersides with up right grooves 56 and the partitions are pro vided on bothsides with upright grooves 57 which operate as u right channes for thecirculation of -air a ong`the Ajars placed in the sockets of the crateor frame.

The partitions may` be arranged with their ends in those channels of theouter walls which coincide with the partitions and the walls andpartitions may be se. cured together by serewsor nails.

The crate or frame, which is open at the bottom, rests upon the leadlining 58 of the compartment 59 in which the group is arranged and thewalls and partitions are provided in their lower edges with' notch 60for the admission of air to the apri' ht circulation passages and-to theunder si es of the jars.

In cells for submarine boats the injurious development of heat has beenvery common, owing to the meager facilities for carrying off thegenerated heat which were heretofore provided. The above describedsystem of air circulation remedies the difficulty eifectually.

We claim as our invention:

1. The combination of a battery jar having on its inner side at the topa transverse recess extending across the'jar, a set of battery platesarranged within the jar, a transverse bus bar' connecting said platesand arranged within said recess, and a vertically disposed plate ofinsulating material within the jar and serving as 'a support for thebattery plates at the ends opposite to those connected to the bus bar.

- 2. The combination of a battery jar having on each of its inneropposite sides at the top, a transverse recessextending across j teryplates at the ends opposite-to those con-` nected to the bus bars.

3. The combination of a battery cell and a crate having its wallsprovided with nprightA air channels adjacent to the cell and havingbottom openings for the admission of air to said channels, substantiallyas set forth.

4. The combination ot' battery cells and a crate comprising outer Wallsand intersecting partitions forming pockets for the cells, said Wallsand partitions being formed in their inner sides with upright airchannels a d having bottoni openings for the admission o'f air to Saidchannels, substantially `as set forth.

5. The combination of battery jars havin;` feet whereby the bottoms ofthe jars are raised above their supports and a crate comprising outerwalls and intersecting partitions forming pockets for the cells, saidwalls and partitions being formed in their inner sides with upright airchannels and having bottom openings for the ad1nission of air to saidchannels, as set forth.

BUFUS N. CHAMBERLAIN. HERBERT E. PRATT. ALBERT S. HUBBARD.

lVitnesses as to the signature of Rufus N. I

Chamberlain EDWARD WLLHELM, C. B. HORNBECK. lVit-nesses as to thesignature of Herbert E.Pratt:

FRED. C. GEYER, GEORGE W. WENZ. Vlitnesses as to the signature of AlbertS. Hubbard: y.

' R. H. WATSON,

' DAISY B. BURNS.

substantially

